It's easy to imagine where the flavors for cherry, banana, and watermelon might come from, but the origins of Jelly Belly's more...peculiar flavors are a little more complicated.

MentalFloss reports smell plays a large part of our sense of taste, so Jelly Belly's resident flavor scientist starts by finding a source for the scent. Once the source is found, it is then placed in a gas chromatograph, which turns the item into vapor - typically after it's been dissolved, boiled, or heated - and examines its chemical makeup.

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After the chemical makeup has been identified, it is then turned into a flavor maker. These flavor makers serve as the starters used by the team to create jelly beans.

This process has been used to create a number of the more unique flavors found in Bertie Bott's Every Flavored Beans and Jelly Belly's BeanBoozled line, including stinky socks and rotten eggs. The infamous Vomit and Barf beans, however, have an entirely different origin.

“The Vomit in the Bertie Bott’s and Barf in BeanBoozled lines were born from the humble attempt to make a pizza-flavored jelly bean,” Jelly Belly spokesperson Jana Sanders Perry explained. “Attempt after attempt was rejected by our taste testers because the cheese flavor of the pizza was not palatable.” The flavor was shelved, then eventually resurrected and made into what they are today.